If 97/100 of the water is found in the ocean, how much water in cubic kilometers is found in our oceans if there is over 1383 billion cubic kilometers if water on the planet

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square